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 > Help with I’d of this capacitor

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Tciambotti1

Noblesville IN

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Posted: 08/18/20 05:31pm Link  |  Quote  |  Print  |  Notify Moderator

I just bought an 88 Starcraft. It has a duo therm brisk air on the roof. When powering on, I have power to the compressor and can get the fan to run if I start it by hand. I’m assuming the capacitor is the issue. Can anyone I’d this one? All of the markings are gone. Thanks everyone.

I guess I have a question first. How do you attach photos here?

Taxman2436

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Posted: 08/18/20 05:37pm Link  |  Quote  |  Print  |  Notify Moderator

Do you know the make and model of the A/C unit?

Lenny


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Ranger Smith

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Posted: 08/18/20 05:59pm Link  |  Quote  |  Print  |  Notify Moderator

Tciambotti1 wrote:

I just bought an 88 Starcraft. It has a duo therm brisk air on the roof. When powering on, I have power to the compressor and can get the fan to run if I start it by hand. I’m assuming the capacitor is the issue. Can anyone I’d this one? All of the markings are gone. Thanks everyone.

I guess I have a question first. How do you attach photos here?


The fan capacitors are usuallly 5 to 7 uf at 370vac and compressor capacitor is usually a 35uf at 370vac. Any capacitor in those ranges will work.


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Posted: 08/18/20 06:36pm Link  |  Quote  |  Print  |  Notify Moderator

I’d not sure. Need more information, picture.

http://photoposting.is-great.net/?i=3


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Posted: 08/18/20 06:49pm Link  |  Quote  |  Print  |  Notify Moderator

Be on the safe side and de energize the capacitor before you play with it.
de energize


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Tciambotti1

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Posted: 08/18/20 06:50pm Link  |  Quote  |  Print  |  Notify Moderator

Taxman2436 wrote:

Do you know the make and model of the A/C unit?

Lenny

Not really. I can’t find any model number or stamped plate for that matter. All I have to go on right now is that the pop up is an 88 and the covers say duo therm brisk air. The capacitor is a 3 post ( herm, c, f )

wnjj

Cornelius, Oregon

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Posted: 08/18/20 08:12pm Link  |  Quote  |  Print  |  Notify Moderator

Tciambotti1 wrote:

Taxman2436 wrote:

Do you know the make and model of the A/C unit?

Lenny

Not really. I can’t find any model number or stamped plate for that matter. All I have to go on right now is that the pop up is an 88 and the covers say duo therm brisk air. The capacitor is a 3 post ( herm, c, f )

That is a combo fan and compressor cap.

Herm=compressor
C=common
F=fan

cougar28

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Posted: 08/18/20 08:43pm Link  |  Quote  |  Print  |  Notify Moderator

Go with a 30-5uf 370vac that the most common. Also if you can still read the name plate on the fan motor they usually alway state what size cap for it.


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cougar28

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Posted: 08/18/20 08:51pm Link  |  Quote  |  Print  |  Notify Moderator

bob213 wrote:

Be on the safe side and de energize the capacitor before you play with it.
de energize


Now why did you go tell him about that. LOL I’ve work on electric motors for 30 + years and the new guy alway find out how they feel within a day or two!

sayoung

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Posted: 08/19/20 06:32am Link  |  Quote  |  Print  |  Notify Moderator

cougar28 wrote:

Go with a 30-5uf 370vac that the most common. Also if you can still read the name plate on the fan motor they usually alway state what size cap for it.

If you can also read the compresser model/make any hvac supply can look up correct MFD.
go with 440v as a little more durable .

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